Got my A1181 09' MacBook 5,2 running a 500GB SSD, 4GB Ram, and pushed it from the max OS of El Capitan to Mojave with a patched install USB I put together (:
How to upgrade RAM memory in MacBook A1181, A1185 laptop - YouTube
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1st Gen (1,1) 2006 Black Polycarbonate Macbook A1181 - HDD/RAM Upgrade - 2018 - YouTube
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How to Upgrade & Install RAM on Apple Macbook A1181 - YouTube
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